Metal-frame screen.



S. ABEL.

METAL FRAME SCREEN.

APPLICATION FILED ]AN.25| 191G Patented Aug. 1, 1916.

1,192,838 2 $HEETSSHEETI S. ABEL.

METAL FRAME SCREEN.

APPLICATION FILED JAN. 26,19Ifiv Patented Aug. 1, 1916.

2 SHEETS-SHEET 2.

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SEBAS'IIAN ABE-L, OF NOR/WOOD, OHIO.

METAL-FRAME SCREEN.

Specification of Letters Patent. Patented Aug. 1, 1916.

Application filed January 26, 1916. Serial No. 74,336.

T 0 all whom it may concern Be it known that I, SEBASTIAN ABEL, a citizenofthe United States, residing at Norwood, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Metal-Frame Screens, of which the following is a specification;

My invention relates to metalframe screens, and has for its object the provision of a metal frame of novel construction whereby the front and rear strips of the frameanembers are formed as duplicates, each having a receiving clamp and an entering tongue respectively extending lengthwise at opposite sides thereof, the clamp and tongue formed by reversely bending the side edge portions of the sheet-metal forming the strip, the entering tongue on each framestrip being received in the receiving clamp of its companion frame-strip, and so arranged. that the screen-cloth is received be tween the entering tongue and the receiving clamp and stretched across the screen frame by the entering movement of the entering tongue.

It is a further object of my invention to provide a metal-frame screen of novel construction as hereinafter guideways.

The invention will be further readily understood from the following description and claims, and from the drawings, in which better illustration of parts. Fig. 2 is a plan view of the same.

Fig. 8 is a cross-section of the metal frame of the screen, showing the screen-cloth attached to one side thereof, and

taken on the section line 38 of Fig. 1. Fig. at is a similar view, taken on the section line 44 of Fig. 1, showing the securing means between the frame-members. Fig. 5 is a cross-section taken on a line corresponding to the line 55 of Fig. 1, exemplifying the construction near a corner, and showing screen-cloth attached to both sides of the metal frame. Fig. 6 is an outside side elevation of one corner of the screen, partly.

I described and claimed, and further to provide nove'lspring means for holding the screen-frame in its broken away for better illustration of parts. Fig. 7 is an edge view detail showing the manner of mounting the spring. Fig. 8 is a cross-section of a modification of the metal frame, having a screen-cloth extending therefrom. Fig. 9 is a similar view, shown in connection with theinner corner-piece and a pair of stretches of screen-cloth extending therefrom. Fig. 10 is a cross-section of a second modification of the metal frame of my improved device, with a screen-cloth extending therefrom. Fig. 11 v is a similar view of the same, shown iii connection with an inner corner-piece and a pair of stretches of screen-cloth, Fig. 12 is a cross-section of a third modification of my improved device, showing a screen-cloth extending therefrom. Fig. 13 is a similar view of the same, shown in connection with an inner cornerpiece and a pair of stretches of screen-cloth. Fig. 14 is a cross-section of a fourth modification of the same, showing a stretch of screen-cloth extending therefrom; and, Fig. 15 is a similar View of the same, shown in connection with an inner corner-piece and a pair of stretches of screen-cloth.

Referring to Figs. 1 to 7 inclusive, 11, 12, represent respectively the front and rear strips which extend lengthwise of the stiles and rails of the metal-frame screen, the stiles and rails being hereinafter designated metal-frame stretches. These strips are formed up out of sheet-metal as duplicates, each being provided with a receiving clamp 13 and an entering tongue 14; at opposite side portions of the strips, and so arranged that, when the strips are reversed and placed in mating positions, the entering tongues will be received into thereceiving clamps at the respective sides of the stretches of the metal-frame. a

Each of the frame-strips comprises a sld wall 17 and an end wall 18, the end wall being bent at shbstantia'lright angles'to the side wall, there being preferably a bead 19 in the angle between these walls, the bead and end wall extending from one edge portion to the side wall.

The other edge portion of the side wall is reversely bent for forming the tongue 14, the tongue comprising walls 21, 22, which spread at their inner ends and converge at their outer ends, a lip 23 extending from the wall 22 and being preferably slightly urved as shown.

The end wall 18 at the edge thereof opposite the bead 19 is bent in the general direction of the side wall 17 for forming a flange connecting with the end wall by means of a bead 25 and is also formed with the receiv ing clamp 13 comprising the walls 27, 28, which spread cross-sectionally toward their inner ends and converge toward their outer ends, the wall 28 being extended as a laterally extending lip 29.

The strips are formed as stated in suitable manner and in suitable lengths, and are cut to the desired lengths for forming the stretches of the metal-frame screen, the ends of the strips being preferably provided with mitercd joints 30, 31.

Before attaching the screen-cloth it is de sirable to form either the front or the rear strips of said stretches into a framing, this framing preferably comprising the front strips presented toward the inside of the room when the screen is in use, the screencloth, exemplified at 32, being reversely stretched across the outer face of said framing and clamped in place by the outer strips. For accomplishing this I provide right-angle corner-pieces 35. The strips forming the framing are connected at their mitered oints 30 by these corner-pieces, the corner-pieces being preferably of channel-form in crosssection, with one of the wings of the channel shortened, the shortened wing being adjacent to the receiving clamp of the strip to which it is attached, and extending lengthwise thereof. These corner-pieces are of sheet-metal and are suitably secured to the strips forming the framing at the corners of the framing in suitable manner, as by electric welding, the spots of the electric welding being indicated at 36.

The framing having been constructed, and when, as is usual, but one screen-cloth is employed, the screen-cloth is laid over the framing and the mating strips put in place. The entering tongues of the mating strips at the screen-cloth side of the framing are pressed into the receiving clamps of the strips of the framing, with the edges of the screen-cloth therebetween, this securing of the screen-cloth being effected preferably first along one of the edges of the framing and progressively around the balance of the framing. The forcing of the mating strips into place will force the screen-cloth into the receiving clamps, thereby stretching the same crosswise of the beads 25. The walls of the receiving clamp press upon the screen-cloth between them and the tongues,

and the walls of the entering tongues preferably press laterally upon the screen-cloth between them and the walls of the receiving clamp, the tongue being preferably resilient for normally causing separation of the outer ends of its walls, and the walls of the receiving clamp being preferably resilient for normally causing approach between their outer ends. When the screen-cloth has been thus assembled upon the framing, the opposing strips are preferably secured together for fixing the outer strips upon the framing. For accomplishing this I have exemplified rivets 38.

In the form shown in Figs. 1 to 7 inclusive, the curved lip 23 presses the screencloth closely to the bead 25 and the lip 29 preferably presses the inner edge of the screen-cloth close to the inner face of the strip.

Suitable handles are attached to the metal-frame, such handles being shown at 39. The handles are respectively secured to the inner end walls 18 of the framing strips, as by rivets 40.

The metal-frame screen is movable up and down in guides 41, 42, suitably attached to the walls of the window-opening, for in stance, by nails 43 tothe uprights 44. The guides are formed up out of sheet-metal and are substantially U-shaped in cross-section, one wing of the guide 42 being shorter than the other, as shown at 45, and forming the guide 42 shallower than the guide 41.

Springs 46 are secured to the screen and extend into the channel of the guide 41, preferably extending from the screen in opposite directions. These springs are curved springs and present their concave faces 47 toward the bottom of the guide 41. The outer end of each spring has a reverse bend 48, so that riding contact of the spring with the bottom of the guide is upon a convexly curved portion of the spring. For securing the spring in place the outer end wall 18 of the securing strip is provided with recesses 49, 50, separated by a web 51. Slots 52 are located between the recesses and web.

The shank of the spring is received through the slots under the web, the inner end of the spring being provided with holes 54 in which pins 55 struck up from the bottom of the recess 49 are received, the spring being firmly held in said recess between the bottoms thereof and said web, and the pin and hole connection between the spring and the bottom of the recess 49.

When the screen is put in place, the springs are introduced into the guideway of the guide 41, and the screen pressed lata Wide range of yield for holding the screen in adjusted position and permitting easy movement thereof.

An additional screen-cloth 57 may, if desired, be stretched across the inner face of the metal frame, as indicated in Fig. 5.

WVhen this additional screen-cloth is employed its edges are received across the entering tongues of the framing and the receiving clamps of the retaining strips placed thereover, the head acting-to stretch the cloth.

I have, in Figs. 8 and 9, shown a modification of my improved device, in which the parts are designated by similar reference numerals raised to the series 100. In this modification the bottom of the receiving clamp is extended toward the inner face of the side wall with which it isintegral, so as to receive support on said inner face, the side wall also being preferably formed with an inwardly extending longitudinal ridge 161 between the side wall and the bead 119 for laterally reinforcing the receiving clamp. In this first modification, further, the outer edge of the entering tongue is preferably reversely bent for forming a bead 162 having an inwardly extending lip 163, which supports the outer edge of said entering tongue against collapse.

In the second modification, shown in Figs. 10 and 11 the metal of the entering tongue is bent in a direction reverse to that shown in Figs. 1 to 9, inclusive, the side edge of the strip being bent inwardly so that the tongue is at the inside of the side wall, the lip 228 of the entering tongue extending laterally parallel to the lip 229 and preferably having support on the inner face of the side wall. In this second modification,

shown in Figs. 10 and 11, the parts are indicated by similar reference numerals raised to the series 200.

In the third modification, shown in Figs. 12 and 13, the parts are indicated by similar reference numerals raised to the series 300. In this modification the receiving clamp 313 is extended inwardly into adjacency with the inner face of the side wall and preferably rests upon the same, the entering tongue being correspondingly extended.

In the fourth modification, shown in Figs. 14 and 15, the parts are indicated by similar reference numerals raised to the series 400. In this modification the receiving clamp has its outer wall extended, the clamped portion being at the inner end' of said wall, preferably resting on the inner face of the side wall of the strip. The enteringtongue has one of. its walls correspondingly extended, these extension walls being parallel and the opposing walls being also parallel for forming lips 429, 423, between which the inner edges of the screen-cloth are resiliently held.

The screens of the modifications are built the frame-stretches whereof are respectively built up with a pair of sheet-metal strips each formed up with a receiving clamp at one side thereof and an entering tongue at the other side thereof, one of said entering tongues received in one of said receiving clamps adjacent to each edge of said respective stretches, and with the screen-cloth clamped between one of said mating tongues and clamps.

2. In combination, a metal-frame screen the frame-stretches whereof are respectively built up with a pair of sheet-metal strips each formed up with a receiving clamp at one side thereof and an entering tongue at the other side thereof, one of said entering tongues received in one of said receiving clamps adjacent to each edge of said respective stretches, and a pair of screen-cloths, one of said screen-cloths having its edges clamped between each of said mating tongues and clamps, and the edges of said screeneloths passing said respective tongues in reverse directions.

3. In. combination, a metal-frame screen the frame-stretches whereof are respectively built up with a. pair of sheet-metal strips which are cross-seetionally duplicates one of the other, each formed up with a receiving clamp at one side thereof and an entering tongue at the other side thereof, and one of said entering tongues received in one of said receiving clamps adjacent to each edgeof said respective stretches, and arranged whereby screen-cloth may be received and clamped between either of said mating tongues and clamps.

4. In combination, a metal-frame screen the frame-stretches whereof are respectively built up with a pair of sheet-metal strips each formed with a receiving clamp at one side thereof and an entering tongue at the other side thereof, one of said entering tongues received in one of said receiving clamps adjacent to each edge of said respective stretches, said tongues and clamps being bent from the body of said stretches with opposing walls, and screen-cloth received about said tongue and clamped between said opposing walls.

5. In combination, a metal-frame screen the frame-stretches whereof are respectively built up with a pair of mating sheet-metal strips each formed with a side wall, an end Wall at one edge of said side wall, a receivlng clamp opposite said side wall having opposing walls spaced from said end wall by a bead formed between said end wall and receiving clamp, an entering tongue having opposing walls at the other edge of said side wall, the outer end of said last-named opposing walls having a flange extending therefrom, one of said entering tongues received in one of said receiving clamps adjacent to each edge of said respective stretches, and screen-cloth the edges whereof are received and clamped between the opposing walls of one of said tongues and clamps and between one of said beads and lips of said respective stretches.

6. In combination, a sheet-metal screen the frame-stretches whereof are respectively built up with a pair of mating sheet-metal strips each formed with a side wall, an end all at one edge of said side wall, a receiving clamp opposite said side wall having opposing walls spaced from said end wall by a bead formed between said end wall and one of said opposing walls, the other of said opposing walls having a laterally extending lip at its outer end, an entering tongue having opposing walls at the other edge of said side wall, the outer one of said last-named opposing walls having a lip extending therefrom, one of said entering tongues received in one of said receiving clamps adjacent to each. edge of said respective stretches, and screen-cloth the edges whereof are received and clamped between the opposing walls of one of said tongues and clamps and by one of each of said lips of said respective stretches.

7. In combination, a metal-frame screen the frame-stretches whereof are respectively built up with a pair of sheet metal strips each formed up with a side wall, an end wall, a receiving clamp extending reverse to the directionin which said end wall projects from said side wall, the inner end of said receiving clamp having support on said side wall, and an entering tongue extending from said side wall reversely to said receiving clamp,

one of said entering tongues received in one of said receiving clamps adjacent each edge of said respective stretches, and a screencloth clamped between one of said mating tongues and clamps.

8. In combination, a metal-frame screen the frame-stretches whereof are respectively built up with a pair of sheet-metal strips each formed up with a side wall, an end wall provided with a longitudinally inwardly extending ridge, a receiving clamp extending reverse to the direction in which said end wall projects from said side wall, the inner end of said receiving clamp having support on said side wall and said ridge, and an entering tongue extending from said side wall reversely to said receiving clamp, one of said entering tongues received in one of said receiving clamps adjacent each edge of said respective stretches, and a screen-cloth clamped between one of said mating tongues and clamps.

9. In a sheet-metal window screen, the combination of a metal-frame the stretches whereof are built up with sheetmetal strips formed with side walls and end walls, a pair of guides in which said window screen has up and down movement, and a curved metal leaf-spring curved with a concave curve and having a reversely bent end, one of said end walls provided with a pair of recesses and an intervening web spaced from the bottoms of said recesses by slots, the shank of said spring received through said slots and under said web with said concave curvature presented outwardly whereby said reversely bent portion rides on the bottom of one of said guides, and means for holding said shank in said slots.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

SEBASTIAN ABEL.

lVitnesses Tnnnnsa M. SILBER, Crnxnnns E. VVEBER.

Copies oi. this patent may be obtained for five cents each, by addressing the Gommissioner of Patents,

Washington, I). C. 

